{"id":59497,"date":"2025-10-04T00:00:24","date_gmt":"2025-10-03T18:30:24","guid":{"rendered":"https:\/\/www.eng.ruh.ac.lk\/dmme\/?post_type=dt_portfolio&#038;p=59497"},"modified":"2025-10-04T16:16:34","modified_gmt":"2025-10-04T10:46:34","slug":"project-samudragen-development-and-field-testing-of-a-scalable-wave-energy-converter-optimised-for-shallow-coastal-conditions-of-sri-lanka","status":"publish","type":"dt_portfolio","link":"https:\/\/www.eng.ruh.ac.lk\/dmme\/project\/project-samudragen-development-and-field-testing-of-a-scalable-wave-energy-converter-optimised-for-shallow-coastal-conditions-of-sri-lanka\/","title":{"rendered":"Project SamudraGEN &#8211; Development and Field Testing of a Scalable Wave Energy Converter Optimised for Shallow Coastal Conditions of Sri Lanka"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1584702595643{padding-bottom: 20px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893353553{padding-bottom: 50px !important;}&#8221;][vc_column_text css=&#8221;.vc_custom_1759515610442{margin-bottom: 30px !important;border-left-width: 3px !important;padding-left: 20px !important;border-left-color: rgba(0,0,0,0.1) !important;border-left-style: solid !important;}&#8221;]<\/p>\n<div class=\"flex items-center gap-2 text-sm\"><span class=\"font-medium\">Prof. H.C.P. Karunasena, Hirun Seneviratne, <\/span><span class=\"font-medium\">Ayangi Perera,\u00a0<\/span><span class=\"font-medium\">Ashen Saminda,\u00a0<\/span><span class=\"font-medium\">Kashyapa Senevirathna<\/span><\/div>\n<p>[\/vc_column_text]<div id=\"ultimate-heading-85716a0098470c014\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-85716a0098470c014 uvc-2286  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"left\" style=\"text-align:left\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-85716a0098470c014 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;margin-top:20px;margin-bottom:20px;\">Project Abstract<\/h3><\/div><\/div>[vc_column_text]This project presents the development and field testing of SamudraGEN, a shallow-water wave energy converter (WEC) designed for the southern coast of Sri Lanka. The system employs a dual rack-and-pinion power take-off mechanism integrated with a buoyant surface floater to capture both heave and surge motions. Two iterative prototypes were developed: SamudraGEN 1.0 as a proof-of-concept and SamudraGEN 2.0 with structural and IoT-based enhancements. Computational Fluid Dynamics (CFD) simulations validated hydrodynamic performance under varying damping conditions, while sea trials at Ginthota confirmed average outputs of 20 W with peaks exceeding 60 W. Real-time monitoring using IoT and cloud-based dashboards enabled performance assessment under real marine conditions. The results demonstrate that SamudraGEN offers a cost-effective, scalable solution for decentralized renewable energy generation in tropical coastal environments. Future scaling, guided by hydrodynamic similarity laws, positions this system as a viable contributor to distributed coastal energy networks.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893349347{padding-bottom: 50px !important;}&#8221;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">.shortcode-single-image-wrap.shortcode-single-image-fc365a0756a2eb7140ae6501e6d7044a.enable-bg-rollover .rollover i,\n.shortcode-single-image-wrap.shortcode-single-image-fc365a0756a2eb7140ae6501e6d7044a.enable-bg-rollover .rollover-video i {\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.shortcode-single-image-wrap.shortcode-single-image-fc365a0756a2eb7140ae6501e6d7044a .rollover-icon {\n  font-size: 32px;\n  color: #ffffff;\n  min-width: 44px;\n  min-height: 44px;\n  line-height: 44px;\n  border-radius: 100px;\n  border-style: solid;\n  border-width: 0px;\n}\n.dt-icon-bg-on.shortcode-single-image-wrap.shortcode-single-image-fc365a0756a2eb7140ae6501e6d7044a .rollover-icon {\n  background: rgba(255,255,255,0.3);\n  box-shadow: none;\n}\n<\/style><div class=\"shortcode-single-image-wrap shortcode-single-image-fc365a0756a2eb7140ae6501e6d7044a alignnone  enable-bg-rollover dt-icon-bg-off\" style=\"margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; width:500px;\"><div class=\"shortcode-single-image\"><div class=\"fancy-media-wrap  layzr-bg\" style=\"\"><img class=\"preload-me lazy-load\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#39;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#39;%20viewBox%3D&#39;0%200%20500%20333&#39;%2F%3E\" data-src=\"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-content\/uploads\/2025\/10\/4-500x333.jpg\" data-srcset=\"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-content\/uploads\/2025\/10\/4-500x333.jpg 500w, https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-content\/uploads\/2025\/10\/4-1000x666.jpg 1000w\" width=\"500\" height=\"333\"  data-dt-location=\"https:\/\/www.eng.ruh.ac.lk\/dmme\/project\/project-samudragen-development-and-field-testing-of-a-scalable-wave-energy-converter-optimised-for-shallow-coastal-conditions-of-sri-lanka\/attachment\/4\/\" style=\"\" alt=\"\" \/><\/div><\/div><\/div>[\/vc_column][vc_column]<div id=\"ultimate-heading-83606a00984713913\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-83606a00984713913 uvc-5421  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-83606a00984713913 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;\">Overview<\/h3><\/div><\/div>[vc_column_text]Global energy demand continues to rise, with urgent need for renewable alternatives to mitigate climate change. While solar and wind have matured, wave energy remains underutilized despite its high density and predictability. In Sri Lanka, southern coastal waters present wave energy potentials of 12\u201315 kW\/m, yet field-tested converters are scarce, and most initiatives remain limited to simulations. The main challenges are the lack of low-cost, reliable WEC designs optimized for shallow-water conditions and the high failure rates of complex power take-off systems. These barriers restrict adoption in developing nations where affordability and mechanical resilience are critical. This project addresses these gaps by developing SamudraGEN, a modular and scalable point absorber WEC tailored for nearshore tropical seas. Its simplified dual rack-and-pinion PTO minimizes complexity, reduces maintenance requirements, and ensures structural stability. By incorporating real-time IoT monitoring, the system also advances digital integration in marine energy technologies. The project\u2019s significance lies in demonstrating the feasibility of cost-effective shallow-water WECs for Sri Lanka, paving the way for decentralized renewable energy solutions for coastal communities. Beyond local benefits, the findings contribute to the global discourse on diversifying renewable energy portfolios and lowering Levelized Cost of Energy (LCOE) for wave power.<\/p>\n<p>Field trials of SamudraGEN validated its ability to generate consistent electrical power in real shallow-water conditions. SamudraGEN 1.0 achieved stable 12 V outputs with peaks of 20 W, while the upgraded SamudraGEN 2.0 demonstrated enhanced performance, with sustained averages of ~20 W and peaks exceeding 60 W during energetic wave cycles. CFD simulations confirmed effective energy capture across different damping values, highlighting trade-offs between energy absorption and structural stress.[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; bg_type=&#8221;image&#8221; bg_override=&#8221;ex-full&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1572893362996{padding-bottom: 70px !important;}&#8221;][vc_column offset=&#8221;vc_col-lg-offset-0 vc_col-lg-12 vc_col-md-offset-0 vc_col-md-12&#8243;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">.shortcode-single-image-wrap.shortcode-single-image-5f2482716a0cb7576d683f2bff20f7b4.enable-bg-rollover .rollover i,\n.shortcode-single-image-wrap.shortcode-single-image-5f2482716a0cb7576d683f2bff20f7b4.enable-bg-rollover .rollover-video i {\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.shortcode-single-image-wrap.shortcode-single-image-5f2482716a0cb7576d683f2bff20f7b4 .rollover-icon {\n  font-size: 32px;\n  color: #ffffff;\n  min-width: 44px;\n  min-height: 44px;\n  line-height: 44px;\n  border-radius: 100px;\n  border-style: solid;\n  border-width: 0px;\n}\n.dt-icon-bg-on.shortcode-single-image-wrap.shortcode-single-image-5f2482716a0cb7576d683f2bff20f7b4 .rollover-icon {\n  background: rgba(255,255,255,0.3);\n  box-shadow: none;\n}\n<\/style><div class=\"shortcode-single-image-wrap shortcode-single-image-5f2482716a0cb7576d683f2bff20f7b4 alignnone  enable-bg-rollover dt-icon-bg-off\" style=\"margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; width:500px;\"><div class=\"shortcode-single-image\"><div class=\"fancy-media-wrap  layzr-bg\" style=\"\"><img class=\"preload-me lazy-load\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#39;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#39;%20viewBox%3D&#39;0%200%20500%20370&#39;%2F%3E\" data-src=\"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-content\/uploads\/2025\/10\/54-500x370.png\" data-srcset=\"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-content\/uploads\/2025\/10\/54-500x370.png 500w, https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-content\/uploads\/2025\/10\/54-1000x740.png 1000w\" width=\"500\" height=\"370\"  data-dt-location=\"https:\/\/www.eng.ruh.ac.lk\/dmme\/project\/project-samudragen-development-and-field-testing-of-a-scalable-wave-energy-converter-optimised-for-shallow-coastal-conditions-of-sri-lanka\/attachment\/54\/\" style=\"\" alt=\"\" \/><\/div><\/div><\/div>[\/vc_column][\/vc_row][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; el_class=&#8221;reverse-row-on-mobile&#8221; css=&#8221;.vc_custom_1572893387563{margin-bottom: -40px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893376547{padding-bottom: 20px !important;}&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893381514{padding-bottom: 50px !important;}&#8221;][\/vc_column][vc_column]<div id=\"ultimate-heading-55026a00984715483\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-55026a00984715483 uvc-5981  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"left\" style=\"text-align:left\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-55026a00984715483 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;margin-top:20px;margin-bottom:20px;\">Awards<\/h3><\/div><div class=\"uvc-sub-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-55026a00984715483 .uvc-sub-heading '  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}'  style=\"font-weight:normal;margin-top:20px;margin-bottom:20px;\"><\/p>\n<ul>\n<li>IESL YMS Technical Conference 2024 Best Paper Award in Mechanical, Building Service, Manufacturing and Chemical Engineering<\/li>\n<\/ul>\n<p><\/div><\/div>[vc_separator]<div id=\"ultimate-heading-56046a00984715515\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-56046a00984715515 uvc-5578  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"left\" style=\"text-align:left\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-56046a00984715515 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;margin-top:20px;margin-bottom:20px;\">Publications<\/h3><\/div><div class=\"uvc-sub-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-56046a00984715515 .uvc-sub-heading '  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}'  style=\"font-weight:normal;margin-top:20px;margin-bottom:20px;\">Development and Field Testing of a Scalable Wave Energy Converter Optimised for Shallow-Sea Wave Conditions of the Southern Coast of Sri Lanka<\/div><\/div>[vc_separator]<div id=\"ultimate-heading-39566a00984715592\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-39566a00984715592 uvc-3259  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"left\" style=\"text-align:left\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-39566a00984715592 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;margin-top:20px;margin-bottom:20px;\">Social Media<\/h3><\/div><div class=\"uvc-sub-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-39566a00984715592 .uvc-sub-heading '  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}'  style=\"font-weight:normal;margin-top:20px;margin-bottom:20px;\"><a href=\"https:\/\/www.facebook.com\/profile.php?id=61563554573078&amp;mibextid=ZbWKwL\">Facebook<\/a><\/div><\/div>[vc_separator][\/vc_column][vc_column]<div id=\"ultimate-heading-60596a00984715609\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-60596a00984715609 uvc-6359  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"left\" style=\"text-align:left\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-60596a00984715609 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;margin-top:20px;margin-bottom:20px;\">Acknowledgement<\/h3><\/div><div class=\"uvc-sub-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-60596a00984715609 .uvc-sub-heading '  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}'  style=\"font-weight:normal;margin-top:20px;margin-bottom:20px;\">We gratefully acknowledge the support of the Department of Mechanical and Manufacturing Engineering, University of Ruhuna. Special thanks to Prof. Chaminda Karunasena and team members for their contributions in design, fabrication, and sea trials. Appreciation is extended to all technical staff and collaborators who made this project possible.<\/div><\/div>[\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1584702595643{padding-bottom: 20px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893353553{padding-bottom: 50px !important;}&#8221;][vc_column_text css=&#8221;.vc_custom_1759515610442{margin-bottom: 30px !important;border-left-width: 3px !important;padding-left: 20px !important;border-left-color: rgba(0,0,0,0.1) !important;border-left-style: solid !important;}&#8221;] Prof. H.C.P. Karunasena, Hirun Seneviratne, Ayangi Perera,\u00a0Ashen Saminda,\u00a0Kashyapa Senevirathna [\/vc_column_text][vc_column_text]This project presents the development and field testing of SamudraGEN, a shallow-water wave energy converter (WEC) designed for the southern coast of Sri Lanka.&hellip;<\/p>\n","protected":false},"author":1,"featured_media":59498,"comment_status":"closed","ping_status":"closed","template":"","dt_portfolio_category":[],"dt_portfolio_tags":[129,126,127,125,128],"_links":{"self":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/dt_portfolio\/59497"}],"collection":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/dt_portfolio"}],"about":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/types\/dt_portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/comments?post=59497"}],"version-history":[{"count":26,"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/dt_portfolio\/59497\/revisions"}],"predecessor-version":[{"id":59533,"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/dt_portfolio\/59497\/revisions\/59533"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/media\/59498"}],"wp:attachment":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/media?parent=59497"}],"wp:term":[{"taxonomy":"dt_portfolio_category","embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/dt_portfolio_category?post=59497"},{"taxonomy":"dt_portfolio_tags","embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmme\/wp-json\/wp\/v2\/dt_portfolio_tags?post=59497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}